21962044420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26782981}}^1$

素因数の和:26783031

約数の個数: 24

約数和(自身を含む): 47245180248

約数和(自身を除く): 25283135828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 26782981, 53565962, 107131924, 133914905, 267829810, 535659620, 1098102221, 2196204442, 4392408884, 5490511105, 10981022210, 21962044420]

約数ペア:

[(1, 21962044420), (2, 10981022210), (4, 5490511105), (5, 4392408884), (10, 2196204442), (20, 1098102221), (41, 535659620), (82, 267829810), (164, 133914905), (205, 107131924), (410, 53565962), (820, 26782981)]